- Type: Contactless Read/Write
- Capacity: 1Kbit
- Operating Frequency: 13.56 MHz.
- Standard Deployment: Access control, Healthcare, etc.
- Tested Read Range: 3~20cm, varying on the reader used
- Size: 65mm & 74mm
- Material: Soft Silicon
- Color available : White, Red, Yellow, Blue.
- Features Waterproof, dustproof, and High temperature Resistance
- Weight: 5g
- IC used: MF1 S50( or mifare Compatible as in order )
- Compliance: ISO 14443A
- Operating Temperature: -40°C to 90°C, Stand up 200°C for 6hrs
- Storage Temperature: -40°C to 85°C
Thursday, October 28, 2010
13.56MHz. RFID Silicon Wrist Band Tag, by NXP
Thursday, October 21, 2010
WIZnet Chip Fully Hardwired TCP/IP Chip, W3100A-LF.
- TCP, UDP, IP, ARP, ICMP, MAC
- Amazing protocol processing speed (depending upon MCU) 8051 (max. 1Mbps), AVR (max.8Mbps), ARM7 (max.21Mbps)
- 10/100 Base-T Ethernet Gateway (Auto detection)
- Supports 4 independent channels simultaneously(Dynamic buffer allocation for each channel)
- Full-duplex mode
- MCU bus interface and I2C serial interface for MCU
- Support 8 Bit CPU Access
- Standard MII interface for physical layer
- 16KBytes data buffer embedded
- Simple socket API interface
- Small 64 Pin LQFP package
- 3.3V internal operation, 5V tolerant I/Os
- Commercial Temperature Range from 0°C to 70°C
- DHCP, TELNET, FTP, HTTP, DNS, SNMP source codes are provided with EVB or DK
- All source codes are written in ANSI C totally free
- RoHS Package
- As a Internet Controller
Easy embedded to controllers or data collectors with low-end MCUs
- As a Internet Accelerator
Reducing Jitter with fixed processing time by hardware. Enhancing video and voice quality.
Cost Benefits: No OS required
Implementation Benefits: Easy control way like memory
Performance Benefits: Line-speed data transmission by hardwired logic and Saving MCU processing power by TCP/IP offload
Monday, October 18, 2010
The Usage of Mode Conditioning cable , if you want to apply Gigabit single-mode (LX) over an existing multi-mode fiber Optic Cable Plant.
Things to know when using mode conditioning cables to patch an existing multi-mode cable plant to your Gigabit Single-mode (LX) equipment.
Mode conditioning cable are normally used in pair. That means you need a MC cable at each end to connect the equipment to the cable plant. So then these cables are usually ordered in even numbers. The usual reason why someone may order one cable is for spare unit.
If your gigabit single-mode (LX) switch is equipped with SC or LC connectors, be sure to connect the yellow leg (Single-mode) of the cable to the transmit side, and the orange leg (multi-mode) to the receive side of the equipment. It is imperative that this configuration be maintained on both ends. The swap of transmit and receive can only be done at the cable plant side. (see image below)
Generally, Mode Conditioning patch cords are required for link distances greater than 984 feet (300 meters). We have heard some case stories where that distance has been lesser or greater. To our experience, the distance of 984 feet (300 meters) is just a benchmark. Your results may vary according to various different equipment and field conditions.
Some manufacturers of the newer "high end" multimode fibers claim that that their premium line cables will not require mode conditioning. Contact the manufacturer of your installed cable for the answer.
Saturday, October 09, 2010
The Stingray robot from Parallax Inc. provides a mid-size platform for a wide range of robotics projects and experiments. The Propeller Robot Control Board is the brains of the system providing a multiprocessor control system capable of performing multiple tasks at the same time. The Propeller chip provides eight 32-bit processors each with two counters, its own 2 KB local memory and 32 KB shared memory. This makes the Propeller a perfect choice for advanced robotics and the Stingray robot.
• Multicore Propeller chip based control board
• Extra large EEPROM (64 KB) for storing additional data
• On-board 3.3 V & 5V switching power supply
• 5 V I/O translators to simplify interfacing to 5 V sensors/devices
• Integrated dual full bridge driver
• Two DC spur gear motors
• Two-wheel differential drive system with rear omni-directional wheel
• Multiple mounting locations for sensors, add-ons, etc.
• Free online Propeller Tool programming software for Windows and example Stingray source code (requires Win2K/XP/Vista, IE7 or higher, and USB port)
• Power requirements: 6 AA 1.2 V Rechargeable Batteries (not included)
• Communication: USB A to Mini B Cable (included)
• Operating temperature: 32 to 158 °F (0 to 70 °C)
• Dimensions, assembled: 13” L x 10.9” W x 5.5” H (33 x 27.7 x 14 cm)
The Propeller Servo Controller allows you to control up to 16 servos (32 using two Propeller Servo Controllers) by sending serial commands from a microcontroller or PC via its USB connection. The Propeller Servo Controller USB is Propeller-based and open-source. This means you can modify the existing code or develop your own code to make the Propeller Servo Controller do more and control more.
The Propeller Servo Controller USB is fully compatible with our previous servo controllers and will run with the beta PSCI software application. In addition the hardware and software were set up to take advantage of additional features that you can implement in custom software. Additional features that can be taken advantage of with custom software are an additional 32K EEPROM included for storing of custom settings and/or sequence data, CMOS switch capable of controlling downstream serial communication and a software controlled LED.
Outputs are set at 5V. The Propeller Servo Controller USB contains a superset of the original servo controller commands. Any output can be disabled on startup or set to a custom startup position. Outputs can also be disabled and enabled at any time. The Propeller Servo Controller USB can be powered from a PC USB port or by the host microcontroller.
* P8X32A-M44 Propeller chip on-board
* 80 MHz clock speed
* 64KB EEPROM (32KB available for user data)
* 16 channels using one PSCU, 32 channels using two
* Compatible with our previous servo controllers (and superset of instructions)
* Open-source firmware
* Servo Ramping
* Network ready - the Propeller Servo Controller USB can be linked to other units to expand the number of channels
* Fun-house prop control
* Animated art control
* Power requirements: 5 VDC @ ~60mA for logic, 4.8 - 7.5 VDC for servos
* Communication: Asynchronous Serial @ 2400ps or 38.4kbps (TTL or USB)
* Dimensions: 2.25 x 1.8 x 0.65 in (57.14 x 45.74 x 16.53 mm)
* Operating temp range: +32°F to +158°F (0°C to +70°C)
Thursday, October 07, 2010
Low Cost programmable mobile robot with ATMega 8515 (Local Assembling), for multipurpose mobile robot.
- 4 wheel mobile
- 1:22 gearbox ratio
- with ATMega 8515 CPU Core that consist 35bit I/O
- 2 line follower sensor thant adjustable for thin and thick lines.
- 4 limit switch for bump detecting
- interfacing for programming via USB, serial , or Infrared
- equipped with usb cable and serial cable for programming
- equipped with C libraries
- equipped with CD program and manual
- built in buzzer
- 2 port with high currect output ready
Low Cost Line Follower robot (local assembling). Single function line follower robot kit, for beginner.
- 4 rubber wheels
- 2 DC motors
- 4 pcs Battery pack A3 (battery not included)
- dual H-Bridge system with short circuit protection
- no doubt infrared sensor system
- widely adjustable line follower sensor
- equipped with assembling & installation manual
Low cost Hexapod Aluminium body robot, is special purpose body robot for learning Hexapod walking principles.
- body size 16x7.5cm, durable, lightweight, ductile and malleable metal (Aluminium)
- equipped with rubber each leg (all 6 leg)
- equipped with 2 DC motor
- local assembling
Saturday, October 02, 2010
EasyPIC 6 Development Board
3 in 1 Development System - Development System + On-Board USB 2.0 programmer + On-Board mikroICD (In-Circuit Debugger): mikroICD is a highly effective tool for Real-Time debugging at hardware level. It enables you to execute mikroC, mikroPascal and mikroBasic programs on a host PIC microcontroller and monitor variable values, Special Function Registers (SFRs), RAM and EEPROM memory modules while the program is running. There is an ultra fast USB 2.0 programmer for MCU programming that now supports more PIC microcontrollers.
- EasyPIC6 is a development system that supports over 160 8-, 14-, 18-, 20-, 28- and 40-pin PIC MCUs.
- EasyPIC6 allows PIC microcontrollers to be interfaced with a wide range of peripheral modules.
- Very fast, on-board USB 2.0 programmer with a simplified driver installation.
- On-board 16-bit I/O port expander MCP23S17 that uses SPI communication.
- mikroICD is a hardware tool designed for testing and debugging programs on PIC microcontrollers.
- EasyPIC6 includes an on-board Touch Screen controller with a Touch Panel connector.
Note: Touch Screen, Pencil, DS1820, LCD, Serial Cable and GLCD are not included in the price!
- RS-232 communication with a PC or a microcontroller is performed via DB9 connector.
- System provides support for MCUs in DIP8, DIP14, DIP18, DIP20, DIP28 and DIP40 packages. It comes with a PIC16F887.
- 2x16 character COG Display is used for displaying text messages. It is connected to the system via SPI.
- On-board jumpers are used for pull-up/pull-down port configuration. These jumpers are available for all pins.
- Very fast USB 2.0 programmer with mikroICD support. There is no need for connecting the external programmer.
- System can be configured by means of DIP switches. Each DIP switch configures one part of the system.
- Touch Screen can be connected to the board via Touch screen connector. There is also a Touch Screen controller.
- Graphic LCD 128x64 can be easily connected to the board via the appropriate connector. It is connected to MCU pins.
- USB communication connector enables you to connect your microcontroller with a PC via USB interface.
- 4x4 Keypad allows efficient entry of numeric data and other characters as well.
- 2 potentiometers are used for testing multiple A/D conversions. Inputs can be configured via jumpers.
- All microcontroller pins are connected to the IDC10 connectors for further expansion.
- 36 push buttons are used to excite microcontroller digital inputs. They are connected to all microcontroller pins.
- LCD can be easily connected via the on-board connector that is also connected to MCU pins.
- External power supply can be either DC or AC. The on-board jumper is used for selecting external power supply.
- MCU pins are marked on the back of the board. These marks provide basic information on the pins.
- Reset circuit is used to reset the microcontroller. It is connected to the MCLR pin of the microcontroller.
- Menu Keypad enables easy and fast menu browsing for your prototype device.
- Digital thermometer DS1820 measures temperature from -55°C to 125°C. It is connected to the system via socket.
- USB or external power supply source is selected by moving a jumper. Power supply switch turns the system on/off.
- 36 LEDs (Light Emitting Diodes) are used to indicate the logic states of all microcontroller pins.
- DIP switch is used to separate port pins from pull-up/pull-down resistors.
- LCD Contrast Potentiometer is used for adjusting LCD contrast.
- Quartz Crystal is replaceable. The MCU pins can be configured via jumpers as oscillator inputs or regular I/O pins.
- Voltage level to be applied when a button is pressed (GND or +5V) is selected via the on-board jumper.
- PS2 connector enables the development system to be directly connected to a PS/2 device such as keyboard or mouse.
- Port Expander enables you to add more inputs or outputs to your prototype device.
The EasyPIC6 development system supports a wide range of microcontrollers including over 160 PIC microcontrollers. Newly released PIC microcontrollers will be supported by a new version of PICFlash software that is updated regularly. Here is a list of all microcontrollers supported by the EasyPIC6 development system:
|PIC10 and PIC12 Microcontrollers Family|
|PIC16 Microcontrollers Family|
|PIC18 Microcontrollers Family|